Electric-wire coupling.



C. W. WEAVER.

ELECTRIC WIRE COUFLING.

APPLICATION. FILED IUIIE I9. IQII.

1,257,054. mma Fab. 19,1918..

COUBTLAND w. WEAVER, 0E TORONTO, ONTARIO, CANADA.

ELECTRIC-WIRE COUPLING.

Specification of Letters Patent.

Patented Feb. 19, 1918.

Application filed June 19, 1917. Serial No. 175,680.

To all whom t may concern:

Be it known that I, COUETLAND lV. WEAVER, a subject of the King of Great Britain, residing at Toronto, county of York, Province of Ontario, in the Dominion of Canada, have invented certain Improvements in Electric- VWire Couplings, of which the following is a descriptiml, reference being had to the accompanying drawings, forming a part thereof.

The object of the :invention is to provide a. simple and relatively inexpensive coupling for electric wires designed as a means of connecting and protecting the joint between a conduit or feed wire and a fixture wire under such conditions as will. provide ready access thereto while guarding against acciflental disarrangement, short circuiting and the like.

Further objects and advantages of the invention will appear in the following description of a preferred embodiment, it being understood that changes in the form, proportion and minor details may be resorted to within the scope of the appended claims without departing from the spirit of the invention.

In the drawings,

Figure l is an axial sectional view of a cap or cover forming one element of the device.

Fig. 2 is an end view of the same.

Fig. 3 is an edge viewof a resilient washer, as of rubber or the like, entering into the structure of the device when its parts are assembled. Y

Fig. 4t shows edge and side views of a contact plate to be housed within the cap or cover.

Fig. 5 shows the connection with the contact plate of the wires.

Fig. 6 is a side view of the device with the parts assembled.

Fig. 7 a top plan view of the struct-ure as illustrated in Fig. 6.

Fig. 8 is a side view of the base.

The contact plate 10 is fitted with binding screws 1l threaded in suitable openings 1Q thereof, said screws being adapted t0 extend respecti rely from opposite sides of the plane of the, plate and project terminally beyond the relatively opposite surface, the relation between the head of one binding screw and the stem or shank 0f the other being such that when the wires 13 and 14 are looped respectively under the heads of' the said screws, the extremities thereof are prevented from springing or swinging out of position by means of the shan ks or stems, therefore constituting stops and facilitating the effective engagement of the wires. i(

This joint is housedv within a casing con-- sisting of a cap or cov u of insulating ma- 6) terial such as wilcanire,y into the open end of which is fitted and threaded a base i6 having a knurled j ieriphery whereby it may be held against revohible movement as the cap or cover' is screwed to place, and the latter being provided with a fianged open end, as shown at i7, between which and the surface of the base is arranged a washer 18 of rubber or its equivaiet which is designed to exert a cushioning so as to lock the cap or cover to the base when adjusted to prevent accidental diszurriioement.

The conduit and fixture wires are led through openings 19 and 20 of the base, to hold said wires against excessive relative movement, and as a means of distinguishing the same, they are preferably made of diiierent diameters, as illustrated in detail in Fig. 7, the conduit wire obviously being inserted through the opening of larger diameter while the smaller opening is designed for the reception of the fixture wire. By such arrangement, the liability of such a disarrangement of the parts as might result in short circuiting is reduced to the minimum.

Nhat I claim is z- 1. A. coupling for electric wires having a plate provided with threaded apertures and binding screws engaging said apertures from opposite sides of the plane of the plate, the periphery of the head of each screw being disposed in proximity to the shank of the other screw to prevent displacement of the engaged wires.

2. A coupling for electric wires having a plate, and binding screws mounted in the plate and engaging the same from opposite sides of the plane thereof, the shank of each binding screw forming a stop to limit the radial movement of the extremity of a wire engaged by the head of the other screw.

This speciiication signed .and witnessed this 21st day of May A. D. 1917.

COURTLAND lV. VEAVER.

litnesses A. C. BUTTERwoRTH, VERA M. CAMPBELL.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner or Patents, Washington, D. C. 

